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Metro-North Railroad ( reporting mark MNCW ), [8] trading as MTA Metro-North Railroad, is a suburban commuter rail service operated by the Metropolitan Transportation Authority (MTA), a public authority of the U.S. state of New York. Metro-North serves the New York Metropolitan Area, running service between New York City and its northern ...
Signal types. North American signals are commonly of three types. Absolute – Absolute signals are usually connected to an interlocking controlled by a block operator or train dispatcher. Their most restrictive aspect is "stop" and trains cannot pass them at stop unless they obtain special authority.
Standards for North American railroad signaling in the United States are issued by the Association of American Railroads (AAR), which is a trade association of the railroads of Canada, the US, and Mexico. Their system is loosely based on practices developed in the United Kingdom during the early years of railway development.
New Haven Line. The New Haven Line is a 72.7 mi (117.0 km) commuter rail line operated by the Metro-North Railroad in the U.S. states of New York and Connecticut. Running from New Haven, Connecticut, to New York City, the New Haven Line joins the Harlem Line in Mount Vernon, New York, and continues south to Grand Central Terminal in Manhattan.
The Port Jervis Line is a predominantly single-track commuter rail line running between Suffern and Port Jervis, in the U.S. state of New York. At Suffern, the line continues south into New Jersey on NJ Transit 's Main Line. The line is operated by NJ Transit Rail Operations under a contract with Metro-North Railroad (MNRR).
Positive train control. A Metrolink locomotive decal on an MP36PH-3C stating that it is equipped with positive train control technology. Positive train control ( PTC) is a family of automatic train protection systems deployed in the United States. [1] Most of the United States' national rail network mileage has a form of PTC.
A railway signal is a visual display device that conveys instructions or provides warning of instructions regarding the driver's authority to proceed. [1] The driver interprets the signal's indication and acts accordingly. Typically, a signal might inform the driver of the speed at which the train may safely proceed or it may instruct the ...
Railway signalling. A Class 66 locomotive (right) is waiting at a red signal while a First Great Western passenger train (left) crosses its path at a junction. Railway signalling ( BE ), or railroad signaling ( AE ), is a system used to control the movement of railway traffic. Trains move on fixed rails, making them uniquely susceptible to ...